Derivative Instruments (Net Cash Received (Paid) Related to Derivatives) (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||
| Operating activities | $ 41.1 | $ 72.7 |
| Investing activities | 0.0 | (0.1) |
| Financing activities | (0.2) | 82.7 |
| Total | $ 40.9 | $ 155.3 |